Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,240,000

· Closed October 14, 2021

4 W 21ST Street #12A
Closed For Sale Condop

$1,240,000

4 W 21ST Street #12A

Flatiron, Manhattan

4W21

MLS® #RLS10741317

RLS at REBNY

Listing by Douglas Elliman Real Estate

2

Bedrooms

2

Baths

N/A

Sq. Ft.

2005

Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Year Built 2005
Ownership Condop
HOA/Common Charges $4,880/mo
Parking Garage
Neighborhood Flatiron
Floor 12 of 17

Property Highlights

  • Exposure: South facing
  • Parking: Private garage

Property Details

Type Condop
Ownership Condop
Total Rooms 5
Baths 2 Full
Floor 12 of 17
Exposure South
Pets Yes
Cross Street 5 AVENUE and AVENUE OF THE AMERICAS
Year Built 2005
Parking Garage Available
Parcel # 0822-0045-00004-000-000012A

Listing History

Event Date Price Change
Listed Sep 9, 2021 $1,295,000 -
Currently May 18, 2026 $1,240,000 -4.2%

Description

Residence 12A is thoughtfully designed two-bedroom loft in the heart of the Flatiron district.

The spacious living and dining area featuring soaring loft like ceilings is anchored by an open chef's kitchen equipped with Poliform Varenna white gloss cabinets, solid Pied Auberge stone countertops and backsplash, a Sub-Zero refrigerator, Miele gas range and dishwasher and an extra-large Kohler sink with garbage disposal in the island.

The Primary Bedroom features a dressing area with walk-in closet which leads to a luxurious en-suite bathroom retreat with Glastos honed floors and walls, a Caesarstone dual-vanity, frameless glass shower, soaking tub and radiant heating. The second bedroom off the living room can easily fit a queen size bed or serve as a perfect office or nursery.

Additional features include dark oak hardwood floors and floor-to-ceiling windows that bathe the unit in south facing light. This home has an additional full bathroom, generous closet space, a vented washer/dryer and plenty of wall space to showcase your art collection.

Designed in 2006 by preeminent architect, Hugh Hardy, 4 West 21st Street residents appreciate the expanse and character of a prewar Loft coupled with the luxurious amenities and finishes of new construction. Amenities include a 24-hour doorman, well-equipped fitness center, parking garage, 2,500 sf landscaped courtyard with children's play area, and excellent, live-in Super. This condop building does not require board approval and allows pets, unlimited subletting, pied-a-terres, co-purchasing, gifting, and parents buying for children.

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed

Appliances

Dryer Washer Dryer Allowed Washer

Building Information

Financial Details

Common Charges $4,880/mo
Original Price $1,295,000
Sale Price $1,240,000
Previous Price $1,295,000

The Flatiron District is a busy intersection of history, technology, and luxury living. Named after the iconic Flatiron Building, the neighborhood is centered around Madison Square Park and is a hub for the city's 'Silicon Alley.' The real estate market is famous for its grand cast-iron loft buildings with high ceilings and expansive floor plans, alongside ultra-luxury glass towers that offer modern amenities and central Manhattan convenience.

Flatiron Live Market Data

View Neighborhood

Active Listings

139

Median Asking Price

$2.42M

Median $/Sqft

$1,788

Avg Days on Market

N/A

New This Week

12

Price Reduced

32%

Sold (30 Days)

4

Median Sale Price

$1.55M

Live data from RLS at REBNY • Updated 5/18/26, 1:10 PM EST

Similar Listings in Flatiron

View All

Location

Loading map...

4 W 21ST Street #12A, Flatiron, New York County • Near 5 AVENUE and AVENUE OF THE AMERICAS

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

2005
Year Built
21 years old
17
Floors
54
Residential Units
C6-4A
Zoning District
Elevator Apartments Historic District: Ladies' Mile Historic District

Tax & Assessment

Assessed Value: $18,077,400
Land Value: $900,000
Exemptions: $2,290

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 9,384 SF
Building Area: 119,136 SF
Built FAR: 12.7
Allowed FAR: 10

Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)

Want help estimating ownership costs or understanding building compliance? Let's discuss

Frequently Asked Questions

Common questions about this property

The current listed common charges are $4,880 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 2 bedrooms and 2 full bathrooms.

According to MLS records, the building was constructed in 2005, making it approximately 21 years old.

This listing is a condop, a hybrid structure where the building is legally a co-op but individual units are sold with greater flexibility, often including subletting rights similar to condos.

Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or mcoste@kwnyc.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.

Have a question not answered here?

(917) 416-7433
MLS® ID: RLS10741317
First Listed: 9/9/2021
Price Changed: 10/15/2021
Closed: 10/14/2021
Contract Date: 6/3/2021

Listing Courtesy of Douglas Elliman Real Estate - Rachel Altschuler

Listing Contact: (917) 626-2529

Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.

Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.

Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 5/18/2026 at 5:10 PM UTC

Buying in NYC? Start Here

Condop Explained: The NYC Hybrid

Condo tax benefits with co-op governance. Is it right for you?

Read article

Co-op vs. Condo: Which Is Right for You?

Ownership structure, board approval, financing: the full comparison.

Read article

Condo Due Diligence Checklist

What to review before signing: financials, reserve fund, offering plan.

Read article

NYC Mansion Tax: 2026 Guide

How the tiered mansion tax works for purchases over $1M.

Read article

Interested in this property?

Your info is secure and never shared.

View Active Listings Call Milton